I've recently noted that my
/resolve.conf.tail files were being ignored by NetworkManager DNS changes.
How to make use of them to add defaults nameserver configuration when using NM?
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Network Manager can use several tools to determine DNS. By default it replaces
/etc/resolv.conf itself unless it is a symlink, thus ignoring
You should update NM configuration to use
resolveconf util to update DNS configuration.
/etc/NetworkManager/NetworkManager.conf and add:
Then restart NM with
systemctl restart NetworkManager.
See "man 5 NetworkManager.conf" for details.